Black-chinned AntbirdHypocnemoides melanopogon

The Black-chinned Antbird is largely restricted to northern Amazonia, although a separate subspecies is recognized for those populations found south of the Amazon River, between the lower Rio Purus and Rio Madeira, and the Rio Tapajós and the Rio Tocantins. Its plumage is broadly identical to that of its presumed sister-species, the Band-tailed Antbird (Hypocnemoides maculicauda), the distribution of which primarily is to the south of the Black-chinned Antbird. Both species generally dark gray above, with white wing covert tips, a black tail with a white tip, a black throat in males, and much paler underparts throughout in females. These two species appear to be only clearly differentiated in their vocalizations, although the white tip to the tail is much narrower in Black-chinned Antbird. The Black-chinned Antbird typically forages in close-knit pairs in the understory of seasonally flooded and gallery forests in the lowlands.